Before that, Sheriff held a number of jobs in central government comms. In 2013, she moved from her dual role as official deputy spokesperson for the Prime Minister and head of news at Number 10 to take up the top comms job at the Department for Transport.
Which?’s current head of news, Abbie Sampson, who was interviewed for the July edition of PRWeek, also used to work at Downing Street as chief press officer, making the switch in 2012.
Sheriff’s announcement was accompanied by two other appointments to Which?’s senior leadership team.
Sarah Threadgould joins as group marketing director, making the move from HSBC, while Caroline Normand has been hired as director of policy. Normand previously worked at what is now known as the Department for Business, Energy and Industrial Strategy.
Which?’s chief executive Peter Vicary-Smith said the trio would "all play a key role in helping us to meet our objectives for the next decade and beyond, continuing to make our work to make consumers more powerful".
Alex Neill, who previously held the role of director of policy, campaigns and comms, becomes MD of home and legal services at Which? on Sheriff's arrival.